Improvement in cooling circulation about rotating puddling-vessels



In z/ononr Patented Dec. 2, I879.

W. 8L G. H. SELLERS. Cooling Circulation about Rotating Paddling-Vessels.

Witnesses MPETERS. Pnoro-muoampum WASHINGTON. D C

U ITED ST ES PATENT EFIC E.

WILLIAM SELLERS, 0E PHILADELPHIA, PENNSYLVANIA, AND GEORGE E. sELLERs, or WILMINGTON, DELAWARE; sAID GEORGE ELSELLERS AssIGNoR TO JOHN sELL Rs, JR, or PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENTIN COOLING CIRCULATION ABOUT ROTATING PUDDLING-VESSELS.

Specification forming part of Letters Patent No. 222,314, dated December 2, 1879 application filed I March 17, 1876.

the axis of the puddling-vessel is substantially horizontal and the vessel itself is open at one end only; but itis also applicable to all pudtiling-vessels rotating about an axis inclined to the perpendicular, all such vessels being provided with a water-space about the axis of rotation and a water-supply thereto; and it is the object of our invention to discharge the water which effects the cooling near the axis of the vessel, to maintain the water-level at the highest point within the vessel, and,to provide means for discharging the air which would be trapped lwithin the vessel whenever the Water may rise above the plane of its admission. I

In such rotating puddling-vessels, when the axis of rotation is perpendicular, this cooling circulation is easily applied to the entire height or depth of the water-space by the simple device of an outlet-pipe, the entrance to which is at the highest point of the water-space; but when such a vessel is inclined on its axis, or where the axis of rotation of the vessel is substantially horizontal, the conditions which obtain are so essentially difi'erent that the means which are fully adequate with its rotation about a perpendicular axis are entirely ineffiv cient, inasmuch as the water cannot rise within the vessel above the lowest plane which the entrance of the outlet-conduit will cut in its revolution with the vessel, and the water therefore fails to reach and protect the upper portion of the vesselwhen atrestas, for example, while the charge is melting, and even while revolving under these conditions, the upperportion of the vessel would be unprotected during a greater or less portion of each revolution, ac-

.of the same.

the same, showing the conduit fouadmission cording to the greater or less degree of the inclination of its axis of rotation, asis exemplified in the English Patent No. 2,237 of 1864:. When, therefore, the axis is inclined from the perpendicular, it becomes necessaryto provide a means for maintaining the water at the highest point in the water-space of the rotating vessel, and to attain this withouttrapping the air which the water will give oft as it'beoomes heated. In all rotating puddling-vessels heretofore constructed, in which the axis is inclined from the perpendicular, or even substantially horizontal, it has been proposed to elevate the discharging end of the outlet-pipe above the rotating vessel; but such provlsion must nec essarily trap the air within the vessel, and this air will prevent the water from filling the water-space.

To maintain the greatest height of water within the water-space without trapping the air, our invention consists in combini in a rotating puddling-vessel having awater-space and a water-supply, an outlet-conduit, which revolves with the vessel, and a stationary valve, the entrance to the conduit from the water-space defining the distance from the axis of rotation at which the water can escape, while the valve defines the portion of the revolution within which it can escape, and limits the .escape to that part of the revolution'in which the entrance to the conduitiis atItheH- highest point in the water-space,atwhich point the air will collect and also be free to escape through the conduit, which, and the operation of which, will be clearly understood by reference to the accompanying drawings, which form part of this specification.

Figure 1 represents a longitudinal elevation,

in section, of a puddling-vessel with a water- I back constructed as described in Letters ,Pat-

.ent granted to us November 11, 1878, but with a modified water-circulation, and showing, in section, the conduit for the admission of water, and, in view, outlet-conduits for the discharge Fig. 2 is an end elevation of of water and the outlet-conduits for its discharge. Fig. 3 is an enlarged elevation, in

is an end elevation of this valve and its at tachments, with the conduit for admission, partly in section.

The puddling-vessel and its water-back having been very fully described in our patent before referred to, it is unnecessary, for the purposes of this description, to make further reference thereto.

' The conduit a, for the admission of water, is formed in the axis of the journal which sup ports the rear end of the puddling-vessel. It issurrounded by six outlet-conduits, b I), for discharging the water, which are formed in the same journal, and prolonged, by means ot'pipes, so as to communicate at their inner ends with the interior of the water-back at its largest diameter. The outer ends of these outlet-conduits are alternately opened and closed as they revolve with the vessel by the stationary valve 0. This valve is provided with a circular projection, which fits into a corresponding recess in the rear end of the journal through which the water enters the supply-conduitleadin g to the water back. This projection may be packed by any of the various means in use, so as to prevent the escape of water around it. In the face of this valve a series ofholes are provided above the axis and concentric with the supply-conduit a, and of a size corresponding to that of the outlet-conduits I), but only extending around the axis sufficiently to permil; two of the conduits b to communicate with them at the same time. (See Fig. 4.) These holes communicate with a discharge-opening formed within the valve 0, and having its outlets at c 0, Figs. 3 and 4. The holes may be as described, or one elongated hole would an swer the same purpose.

At the rear of the journal a hemispherical dish, D, is provided and securely fastened to the frame which supports the journal. A pipe, d, is attached to this dish, through which the water is discharged, which falls into the dish from the outlets c 0, before mentioned.

In line with the axis of the vessel, and supported by the dish D, we provide a set-screw and jam-nut, e, for the purpose of pressing the valve 0 against the end of the journal, so as to prevent the escape of water through the outlet-conduits b b until the revolution of the vessel shall bring them opposite the holes in the face of the valves before described.

The operation of the circulation apparatus is as follows: Water being admitted through the supply-conduit a will flow into the waterback, while the air which it displaces will escape by the outlet-pipes b b, the outlet for one of which nearest the top will always be uncovered by the valve 0. This will continue until the water-back is full of water, and if the supply is continued a continuous flow will be maintained through the openings 0 a into the dish D, and by regulating the quantity of the supply the temperature may be maintained at any desired point. Neither the supply nor the discharge will be aflected by the revolutions of the paddling-vessel, and any accumulation of air or steam will be prevented, as such accumulation must always take place at the top of the water-back, from which point there is always a free egress through one of the pipes 1).

Having thus described the objects and nature of our invention, what we claim as new, and desire to secure by Letters Patent, is-

In a rotating peddling-vessel having a water-space about its axis of rotation, anda water-supply thereto, the combinationoi' an out let-conduit which revolves with the vessel, and a stationary valve, the entrance to the con duit defining the distance from the axis of rotation at which the water can escape, while the valve defines the portion of the revolution within which it can escape, and limits the escape to that part of the revolution in which the entrance to the conduit is' ator about the highest point in the water-space, substantially as described.

WM. SELLERS. GEO. H. SELLERS.

Witnesses:

CHAS. E. PANGOAST, H. A. FULTON. 

